I need help with this please

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.